back.cpp

影碟租赁系统

// back.cpp : implementation file
//

#include "stdafx.h"
#include "课程设计.h"
#include "back.h"
#include "film.h"
#include "rent.h"
#include "rage.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Cback dialog


Cback::Cback(CWnd* pParent /*=NULL*/)
	: CDialog(Cback::IDD, pParent)
{
	//{{AFX_DATA_INIT(Cback)
	m_id = _T("");
	m_rage = _T("");
	//}}AFX_DATA_INIT
}


void Cback::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(Cback)
	DDX_Text(pDX, IDC_EDIT1, m_id);
	DDX_Text(pDX, IDC_EDIT2, m_rage);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Cback, CDialog)
	//{{AFX_MSG_MAP(Cback)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Cback message handlers

void Cback::OnOK() 
{
	// TODO: Add extra validation here
	UpdateData(true);
	Crent rent;
	Cfilm film;
	Crage rage;
	CString Id ,str;
	int money;
	Id=m_id;
	film.lend=false;
	film.sql_update(Id);
	money=rent.sql_gettime(Id);
	rent.sql_delete(Id);
    money=money*(rage.sql_getrage(Id));
	str.Format("%d",money);
	m_rage=str;
	UpdateData(false);
	MessageBox("数据库已经修改");
	//CDialog::OnOK();
}

void Cback::OnButton1() 
{
	// TODO: Add your control notification handler code here
	m_id="";
	m_rage="";
	UpdateData(false);
}